hey guys i posted this back in like nov.. last year.. i havent got much time playing with the car.. but i found out that the exhaust side shims were tight. i place the shim caps.. ran better but now after that i have random misfire and cyl 2 and 3. i went to get it tuned. at a different shop i still have the owner tuned the car the a/f was pretty close to target.. around 11.5ish.. wot.. when he 1st open the map he saw the ign. was adv. 5deg. which he dropped it down then tune it from there on out. on the greddy it didnt matter where he set his ign. it has no respond. on it and on his ob2 sys. the ign. is stayin around 13-17deg.. and he didnt see any knock..
my built wisco piston,k1 rods, remove balance shaft had crank rebalance with flywheel and crank pulley.world racing intake mani. bc stage 2 fi cams springs and 1mm oversize valves..new spark plugs ik24.. when i install the cams.. i didnt messure the old pins on the intake cam.. can that me causing my misfire and rough idle? and my old cams where ripmods.. thanks

 

do u have factory size plugs or colder...i was told on low comp motors u need factory plugs or u get miss fire

 

How did he check knock? On the ultimate for our cars you can't check knock. And te random misfire check your plugs if not switch your coilpacks around but mark them wheat cylinder they came from and if you still get the misires on same cylinder it's your tune.

 

I got 2 step colder v power plugs and I'm good.

 

ok ill give that a shot using stock plugs..

 

i swap coils. and that didnt work. he has ob2 sys.. that connects to the stock ecu.. and didnt see and.. but he thinks the misfire is cause the knock sensor because the motor is noisey.. when you come to a full stop the car stumbles and then smooths out... so far when driving home it was ok just until i come to a stop is when u feel the misfire.. and he said you want the fuel trim to be 0% short term and it was at like 1.3% which was good.. and i think he said that goes with long term too.. my other thing is that he couldnt figure out why on the greddy eman ult. he could change the ign.. timing at all.. if he advance does nothing and retard does nothing either.. which i kinda find that weird.. and hes all over the place i mean it goes retarted timing to -1000+ to like 100+ but when he check his ob2 sys.. it reads 13-17deg... could it be the cam sensor not picking up right cuz of the bc cams pins set wrong?

also my maf is max out.. 5v. but im tuning on the map sensor..but i did made 287whp..

 

I heard a while back about the pins on the bc cams being too close on the bc cams to the sensor...in that case they made contact and the sensor was either shimed out or pins were pushed in (been a while so going off of memory). I dont think thats your issue but perhaps there is too much of a gap...if you want i can measure the stock gap and give ya a holla back sometime this after noon.

 

I also been told you still can't see knock by the ob2 port. People need try it out and be the guinea pig.

 

Yes you can, just need the right tools!

 

If the pins on the BC cams do not have the correct air gap with the sensor the car will not run on a standalone. However the car will run with a piggy back because if the cam sensor is producing a skewed signal the stock ECU will ignore it and generate it's own profile as default. When this happens if the signal is too far out of range the ECU will set a code for the cam sensor. If it is only mildly out it could change the injection duration which could cause misfires on specific cylinders considering that the cam sensors job is to time injection firing and duration. Spark will be fine, this pertains more to fuel delivery.

 

Which is?

 

the air gap that i used was on a 07 or 08 camry with an 2azfe engine. i looked up the part for the intake camshaft and it was different part # to the 06 tc intake cam.shaft so the way how im understanding don.. i might be mildly out. and its messing with the timing causein the misfire.. which makes sense cause when i come to a stop my rpm ranges 750-1050 or trying to smooth out the idle.. when you driving or even giving gas over 2k rpm or there is no misfire.. mayb 1% but mainly i see all the misfire on cyl. 2 and 3..

does any1 have the gap of the stock intake cam?? that i can have.. thanks!!

 

sorry i forgot to do that today, engine is at the machine shop now.

 

The scanner will not show timing change because the emanage changes the output side, that kinda throws a red flag that your tuner does not know that. Any timing change will show on the dyno graph though. Also if you keep having idle problems put back on the factory intake manifold.

 

hmmmm....intresting...didnt draxcaliber have an issue with an aftermarket intake manifold? where you at drax?

 

I new it.